GB587328A - Process for the stabilization of cellulose ethers - Google Patents
Process for the stabilization of cellulose ethersInfo
- Publication number
- GB587328A GB587328A GB25570/44A GB2557044A GB587328A GB 587328 A GB587328 A GB 587328A GB 25570/44 A GB25570/44 A GB 25570/44A GB 2557044 A GB2557044 A GB 2557044A GB 587328 A GB587328 A GB 587328A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ethyl cellulose
- stirred
- cupric acetate
- isopropyl alcohol
- examples
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229920003086 cellulose ether Polymers 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 230000006641 stabilisation Effects 0.000 title 1
- 238000011105 stabilization Methods 0.000 title 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 abstract 9
- 239000001856 Ethyl cellulose Substances 0.000 abstract 8
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 abstract 8
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 abstract 8
- 229920001249 ethyl cellulose Polymers 0.000 abstract 8
- 235000019325 ethyl cellulose Nutrition 0.000 abstract 8
- 229940076286 cupric acetate Drugs 0.000 abstract 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000005749 Copper compound Substances 0.000 abstract 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 229960000583 acetic acid Drugs 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 230000015556 catabolic process Effects 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 150000001879 copper Chemical class 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 150000001880 copper compounds Chemical class 0.000 abstract 1
- 229960003280 cupric chloride Drugs 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 239000012362 glacial acetic acid Substances 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/10—Metal compounds
- C08K3/105—Compounds containing metals of Groups 1 to 3 or of Groups 11 to 13 of the Periodic Table
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Ethyl cellulose is stabilized against degradation by heat and oxygen by incorporating a material containing a metal of Group 1B of the Periodic Table in an amount equivalent to 0.0002 to 1 per cent of metal based on the weight of the ether. In an example, films are cast from solutions of ethyl cellulose to which copper powder and various copper salts have been added, and then heated for 16 hours to 120 DEG C. in air. A table shows the percentage retention of viscosity of the ethyl cellulose. In a second example, granular medium-viscosity ethyl cellulose is stirred with 30 per cent isopropyl alcohol and hydrated cupric acetate, whereby all the copper compound is absorbed. In examples (3) ethyl cellulose is stirred with an aqueous solution of hydrated cupric acetate, and (4) ethyl cellulose is tumbled with ground hydrated cupric acetate. In example (5), ethyl cellulose is mixed with aqueous isopropyl alcohol brought to pH 3.6 with glacial acetic acid, and then stirred with hydrated cupric acetate. The previous example is repeated in examples (6) and (7), using pH 7.1 and 8.2, respectively. In examples (8) and (9), ethyl cellulose is treated with dilute nitric acid and then stirred with 35 per cent isopropyl alcohol and cupric chloride, or cuprammonium hydroxide. In place of copper, silver and its compounds, and gold may be used.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB25570/44A GB587328A (en) | 1944-12-20 | 1944-12-20 | Process for the stabilization of cellulose ethers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB25570/44A GB587328A (en) | 1944-12-20 | 1944-12-20 | Process for the stabilization of cellulose ethers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB587328A true GB587328A (en) | 1947-04-22 |
Family
ID=10229831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25570/44A Expired GB587328A (en) | 1944-12-20 | 1944-12-20 | Process for the stabilization of cellulose ethers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB587328A (en) |
-
1944
- 1944-12-20 GB GB25570/44A patent/GB587328A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB587328A (en) | Process for the stabilization of cellulose ethers | |
US2582191A (en) | Amino salts of boric acid-aliphatic polyhydroxy carboxylic acid condensation product | |
ES386899A1 (en) | Process for the manufacture of polyene acids | |
GB926375A (en) | Polytetrafluoroethylene moulding compositions | |
GB759950A (en) | Production of silver of bactericidal and catalytic activity | |
GB643089A (en) | Improvements in or relating to the preparation of 2:6-dihalogeno diphenyl ethers | |
GB855170A (en) | 6-demethyl-6-deoxytetracycline and the 4-epimers thereof | |
US2712024A (en) | Adrenochrome derivative and process | |
GB791315A (en) | A method of facilitating the dissolution of high molecular-weight cellulose derivatives | |
GB1033907A (en) | Germicidal available iodine compositions and method for preparing the same | |
US2124331A (en) | Stable colloidal dispersion of metals | |
GB932523A (en) | Process for the production of lead hydroxide oxide of the formula 5 pbo.2ho | |
US2548636A (en) | Stabilized cuprammonium hydroxide solution and method of preparing the same | |
US2950287A (en) | Preparation of water soluble epinochrome derivatives | |
GB805877A (en) | Process for the production of 2, 3, 5, 6-tetrahydro-1-imidaz (1, 2-a) imidazole | |
GB1358722A (en) | Tetrahydronaphthyloxyaminopropanols and related compounds | |
GB616454A (en) | Improvements in or relating to the preparation of basic lead salts of 2:4 dinitro resorcinol | |
US1974506A (en) | 3.5 diacetoxy mercuri-4-nitroguaiacol | |
US2588517A (en) | Biphenyl amine salts of penicillin | |
GB490432A (en) | Manufacture of pharmaceutical products for counteracting haemorrhage | |
ES276536A1 (en) | A procedure for preparing copper oxipiruvate (Machine-translation by Google Translate, not legally binding) | |
US3057853A (en) | Ethyl cellulose phthalate trimellitate and its preparation | |
DE912091C (en) | Process for the production of addition compounds of sulfur dioxide with low molecular weight aliphatic carboxylic acids | |
GB758759A (en) | Process for the production of stable photographic silver images by the silver salt diffusion process | |
SU465443A1 (en) | Chemical Copper Solution |